Multispectral illumination device

US9239293B2 · kind B2 · utility

Assignee

• Carl Zeiss Microscopy GmbH · DE

Inventors

• Peter Westphal · Jena, DE
• Daniel Bublitz · Glinde, DE

Key dates

• Filing date: Nov 11, 2013
• Grant date: Jan 19, 2016
• Expiry date: Nov 11, 2033

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B27/145
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An illumination device includes at least four semiconductor radiation sources (18) for emitting optical radiation in respectively different emission wavelength ranges. At least one color splitter (22.1, 22.2, 22.3), which is reflective for optical radiation of the respective semiconductor radiation source (18), is assigned to each of at least three of the semiconductor radiation sources (18). The semiconductor radiation sources (18) and the color splitters (22.1, 22.2, 22.3) are arranged such that the optical radiation, which is emitted in each case from each of the semiconductor radiation sources (18), is coupled into a common illumination beam path section (24). In each case, one collimating unit (20.1, 20.2, 20.3, 20.4), which collimates the optical radiation emitted by the respective semiconductor radiation source (18), is arranged in the beam path sections from the semiconductor radiation sources (18) to the color splitters (22.1, 22.2, 22.3).